CN202334815U - Microphone electromagnetic shielding shell for hearing aid - Google Patents
Microphone electromagnetic shielding shell for hearing aid Download PDFInfo
- Publication number
- CN202334815U CN202334815U CN2011203352080U CN201120335208U CN202334815U CN 202334815 U CN202334815 U CN 202334815U CN 2011203352080 U CN2011203352080 U CN 2011203352080U CN 201120335208 U CN201120335208 U CN 201120335208U CN 202334815 U CN202334815 U CN 202334815U
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- shell
- microphone
- electromagnetic shielding
- box
- hearing aids
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Abstract
The present utility model discloses a microphone electromagnetic shielding shell for a hearing aid. The shell comprises an outer shell and a bottom box, and the outer shell is combined with the bottom box in a nested way. The shell is characterized in that a magnetic core coil combining part and a diaphragm part of a microphone are all arranged inside the bottom box, the outer shell is slidingly fitted with the bottom box in mechanical design, and the two parts are combined to use in a nested way. Moreover, a sounding mouth groove and a signal wire groove are designed on a shell body of the outer shell, the two grooves are respectively arranged on two sides of the shell and used as a sound outlet of the microphone and a signal wire outlet of the magnetic core coil combining part. The outer shell and the bottom box are made through one-step molding technology of stretching and punching. The shell at least has the following advantages, a nested structure is adopted to substitute the traditional butt joint type shell body combination, electromagnetic shielding performance of products can be greatly enhanced under the circumstance that sound quality of the products is unchanged; a slidingly fitting way is adopted, manufacturability of relevant microphone products is greatly enhanced, and technology difficulty is reduced; the one-step molding technology which is convenient for stretching and punching is adopted, thus manufacturing processes of the magnetic shielding shell are simpler and more convenient, and costs are lower.
Description
Technical field
The utility model relates to a kind of electromagnetic screen, and particularly a kind of electromagnetic screen that is applied in the midget microphone device such as hearing aids belongs to electroacoustics and micromachine and learns the field.
Background technology
The employed electromagnetic shielding shell of the microphone that is used for hearing aids in the market generally adopts dock; During use, adopt the mode of laser or resistance welded, up and down box butt joint combination; The magnetic core coil of microphone is surrounded wherein, thereby form complete shielding casing.On the manufacturing process, adopt one-off drawing, cutting, add the method for secondary operations.But existing electromagnetic shielding shell ubiquity electromagnetic shielding is incomplete, and electromagnetic radiation is high, and assembled welding process is complicated, and the product capability of electromagnetic shielding receives processing procedure to influence the big deficiency that waits; Further, (referring to readding Fig. 1-3) outlet sound mouth Design of Mechanical Structure of existing shielding case has determined it can only adopt first stretching, and in the method manufacturing of secondary operations, cost is high, and technology difficulty is big.
Summary of the invention
The purpose of the utility model is to propose a kind of microphone electromagnetic shielding shell that is used for hearing aids, and it can effectively improve the capability of electromagnetic shielding of microphone, and has manufacturability and cost advantage preferably, thereby has overcome deficiency of the prior art.
For realizing the foregoing invention purpose, the utility model has adopted following technical scheme:
A kind of microphone electromagnetic shielding shell that is used for hearing aids; It comprises shell and end box two parts; Said shell is by nested mode and the combination of box of the said end; It is characterized in that: the said magnetic core coil built-up section of said microphone and vibrating diaphragm part all place box of the aforementioned end, and aforementioned shell and box of the aforementioned end for being slidingly matched, are used two parts combination by nested mode in Machine Design.
Say that further the bottom of said magnetic core coil is fixedly connected with said can inwall, simultaneously, said vibrating diaphragm is fixed in edge, box open end, the said end.
Be the combination that is slidingly matched between said shell and the end box.
Also be provided with outlet sound mouth groove and signal wire slots on the said shell, be used for the sound outlet and the holding wire outlet of said microphone.
In addition, said shell and end box are stretching, clicking technique one-shot forming.
The profile of said shell and end box adopts rectangle, positive square or round.
Compared with prior art, the advantage of the utility model is:
(1) defective that exists to dock in the existing magnetic screen shell design, the utility model has adopted nested structure to replace the shell of traditional dock structure, can guarantee greatly to have promoted the capability of electromagnetic shielding of product under the constant situation of product sound quality;
(2) adopt the combination that is slidingly matched, compare the harsh requirement of traditional laser or resistance welded, significantly promoted the manufacturability of relevant microphone product, reduced technology difficulty technology;
(3) adopted the design that makes things convenient for stretching, die-cut one-shot forming technique, made the manufacturing process of magnetic screen shell easier, cost is lower.
Description of drawings
Fig. 1 is existing shielding case dock structural representation;
Fig. 2 is the generalized section of existing shielding case dock structure;
Fig. 3 is existing shielding case outlet sound mouth structural representation;
Fig. 4 is the cross-sectional view that the utility model is used for the microphone electromagnetic shielding shell of hearing aids;
Fig. 5 is the microphone electromagnetic shielding shell vertical view that the utility model is used for hearing aids;
Fig. 6 is the microphone electromagnetic shielding shell front view that the utility model is used for hearing aids;
Fig. 7 is the microphone electromagnetic shielding shell rearview that the utility model is used for hearing aids;
Each Reference numeral and indicated assembly thereof are respectively among the figure: 1-shell, box at the bottom of the 2-, the combination of 3-magnetic core coil, 4-signal wire slots, 5-vibrating diaphragm, 6-outlet sound mouth groove, 7-magnetic core coil holding wire.
Embodiment
Be further described below in conjunction with accompanying drawing and a preferred embodiment technical scheme the utility model.
Consult Fig. 4-7; Present embodiment relates to a kind of microphone electromagnetic shielding shell that is applied to hearing aids; It comprises the shell of being combined by nested mode 1 and end box 2; Signal wire slots 4 and outlet sound mouth groove 6 that shell 1 is provided with, and be packaged in the magnetic core coil combination 3 in the end box cavity, vibrating diaphragm 5 and magnetic core coil composite signal line 7; This magnetic core coil combination 3 is fixedly connected on the end box 2, and this vibrating diaphragm 5 is fixedly connected on the edge, open end of end box 2, and box 2 cavitys are passed by the signal wire slots place of shell 1 end of through for this magnetic core coil composite signal line 7, is used for and being connected to realize function of external circuit.
Preferably, this magnetic core coil combination 3 is fixedly connected on the bottom of end box 2.
Aforementioned vibrating diaphragm 5 is preferably the edge, open end that is fixedly connected on end box 2.
Aforementioned shielding cavity is nested to form by a shell 1 and an end box 2, is preferably between this shell 1 and the end box 2 to be slidingly matched.
When using the microphone unit work of this electromagnetic shielding shell; The signal of telecommunication can make up 3 through magnetic core coil by being exposed to signal wire slots 4 outer holding wires 7; According to electromagnetic induction effect; Magnetic core coil combination 3 can be magnetized in the magnetic field that alternating current in the magnetic core coil combination 3 produces, and pushes away, draws active force according to principle that the same sex is repelled each other, there is a natural attraction between the sexes and the magnetization vibrating diaphragm 5 that is fixed on the edge, end box 2 open end, drives vibrating diaphragm 5 vibrations; Spread out of in the outlet sound mouth groove 6 of blow air by shell 1 by the vibration of vibrating diaphragm 5, thereby sound.
The utility model has been done improvement design to the mechanical structure of electromagnetic shielding shell; Thereby under the situation that guarantees the product sound quality, promoted the capability of electromagnetic shielding of product greatly, particularly; Promptly; Adopted the nested design, made the microphone that uses this electromagnetic shielding shell all greatly strengthen at the capability of electromagnetic shielding of all directions
Simultaneously, the utility model is also optimized the mechanical dimension of shell and end box, adopts the combination that is slidingly matched, and has significantly promoted the manufacturability of relevant microphone product, has reduced technology difficulty; In addition, the utility model has also improved the outlet sound mouth and the holding wire outlet design of traditional shielding case, makes things convenient for it to adopt stretching, die-cut one-shot forming technique to make, and makes the manufacturing process of magnetic screen shell easier, and cost is lower.
More than purpose, technical scheme and the beneficial effect of the utility model carried out further explain; Institute is understood that; The preferred embodiment that the above is merely the utility model is not limited to the utility model, and is all within the spirit and principle of the utility model; Any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (8)
1. microphone electromagnetic shielding shell that is used for hearing aids; Comprise shell and end box two parts; Said shell is by nested mode and the combination of box of the said end; It is characterized in that: the said magnetic core coil built-up section of said microphone and said vibrating diaphragm part all place box of the aforementioned end, and aforementioned shell and box of the aforementioned end for being slidingly matched, are used two parts combination by nested mode in Machine Design.
2. the microphone electromagnetic shielding shell that is used for hearing aids according to claim 1 is characterized in that: the bottom of said magnetic core coil is fixedly connected with said can inwall, and simultaneously, said vibrating diaphragm is fixed in edge, box open end, the said end.
3. the microphone electromagnetic shielding shell that is used for hearing aids according to claim 1 is characterized in that: be the combination that is slidingly matched between said shell and the end box.
4. the microphone electromagnetic shielding shell that is used for hearing aids according to claim 2 is characterized in that: be the combination that is slidingly matched between said shell and the end box.
5. the microphone electromagnetic shielding shell that is used for hearing aids according to claim 1, it is characterized in that: said shell is provided with outlet sound mouth groove and signal wire slots, is used for the sound outlet and the holding wire outlet of said microphone.
6. the microphone electromagnetic shielding shell that is used for hearing aids according to claim 1 is characterized in that: said shell and end box are stretching, clicking technique one-shot forming.
7. the microphone electromagnetic shielding shell that is used for hearing aids according to claim 2 is characterized in that: said shell and end box are stretching, clicking technique one-shot forming.
8. according to claim 1 or 2 or 3 or 4 or 5 or the 6 or 7 described microphone electromagnetic shielding shells that are used for hearing aids, it is characterized in that: the profile of said shell and end box adopts rectangle, positive square or round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203352080U CN202334815U (en) | 2011-09-08 | 2011-09-08 | Microphone electromagnetic shielding shell for hearing aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203352080U CN202334815U (en) | 2011-09-08 | 2011-09-08 | Microphone electromagnetic shielding shell for hearing aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334815U true CN202334815U (en) | 2012-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203352080U Expired - Lifetime CN202334815U (en) | 2011-09-08 | 2011-09-08 | Microphone electromagnetic shielding shell for hearing aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334815U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002390A (en) * | 2011-09-08 | 2013-03-27 | 苏州恒听电子有限公司 | Microphone electromagnetic shielding case for hearing aid |
| CN103079131A (en) * | 2012-12-25 | 2013-05-01 | 苏州恒听电子有限公司 | Circuit board with open and close hole and telephone receiver thereof |
| CN103079133A (en) * | 2012-12-25 | 2013-05-01 | 苏州恒听电子有限公司 | Improved device for improving receiver noise |
| CN103079130A (en) * | 2012-12-25 | 2013-05-01 | 苏州恒听电子有限公司 | Device for improving receiver noise |
| CN108289273A (en) * | 2018-03-28 | 2018-07-17 | 深圳倍声声学技术有限公司 | A kind of diaphragm and receiver |
-
2011
- 2011-09-08 CN CN2011203352080U patent/CN202334815U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103002390A (en) * | 2011-09-08 | 2013-03-27 | 苏州恒听电子有限公司 | Microphone electromagnetic shielding case for hearing aid |
| CN103079131A (en) * | 2012-12-25 | 2013-05-01 | 苏州恒听电子有限公司 | Circuit board with open and close hole and telephone receiver thereof |
| CN103079133A (en) * | 2012-12-25 | 2013-05-01 | 苏州恒听电子有限公司 | Improved device for improving receiver noise |
| CN103079130A (en) * | 2012-12-25 | 2013-05-01 | 苏州恒听电子有限公司 | Device for improving receiver noise |
| CN103079131B (en) * | 2012-12-25 | 2016-08-03 | 苏州恒听电子有限公司 | A kind of circuit board with opening and closing hole and receiver thereof |
| CN108289273A (en) * | 2018-03-28 | 2018-07-17 | 深圳倍声声学技术有限公司 | A kind of diaphragm and receiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170206 Address after: The front road 215000 in Jiangsu province Suzhou city high tech Development Zone No. 299 Building 1 Patentee after: Suzhou Puliansi Electronic Technology Co., Ltd. Address before: High tech Zone Suzhou city Jiangsu province 215011 Chuk Yuen Road No. 209 Patentee before: Suzhou Hengting Electronic Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170321 Address after: Song Ling Zhen Wujiang District of Suzhou City, Jiangsu province 215299 Suzhou River Road No. 18 Patentee after: Suzhou Yi Acoustic Technology Co. Ltd.. Address before: The front road 215000 in Jiangsu province Suzhou city high tech Development Zone No. 299 Building 1 Patentee before: Suzhou Puliansi Electronic Technology Co., Ltd. |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Suzhou Hengting Electronic Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 368 Youyi Road, Babai friendship Industrial Zone, Songling Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Suzhou Yiyi Electronic Technology Co., Ltd Address before: Song Ling Zhen Wujiang District of Suzhou City, Jiangsu province 215299 Suzhou River Road No. 18 Patentee before: Suzhou Yilan Acoustic Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |